Time Spent Talking, Not Just Physical Distance, Plays Role In Covid-19 Spread Researchers Say

Stay six feet apart — that’s the rule of thumb when it comes to social distancing. However, a new study suggests we need to take speech into account in addition to physical distancing when creating Covid-19 transmission mitigation strategies. By assessing the physics of saliva droplet formation and subsequent spray while a person speaks, researchers have shown the words we say play a role in how many droplets we spread — and how far they go.  

Forbes summarizes the findings of a new paper that used used high-speed videos to study how a talking person forms saliva droplets.